Ksenia Efremova Wins Australian Open Juniors, Set to Become World No. 1: 'She Knows Exactly Where She Wants to Go,' Says Parmentier At just 16, Ksenia Efremova clinches Australian Open Juniors title and will rise to world No. 1 in juniors. Pauline Parmentier praises the French teen's maturity and determination in her rapid ascent.
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